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Clinical Trial Summary

The Chinese Cerebral Aneurysms Survey is a continuing prospective study to evaluate the effectiveness of unenhanced, three-dimensional time-of-flight magnetic resonance angiography (3D-TOF-MRA) with volume rendering (VR) at 3-T in the detection of intracranial aneurysms.


Clinical Trial Description

Recent years,three-dimensional time-of-flight MRA (3D-TOF-MRA) has become a useful, contrast-free method for observing intracranial vessels and is widely utilized as a screening examination for intracranial aneurysms. The studies available in Medline show mixed results.Some of these studies just included MRI/MRA in the analysis, which have a high rate of false-positives and are unreliable, and some were lack of control (ruptured aneurysm), precise numbers of false-positive results, standard images process and review, or corroborative IADSA in some patients. Furthermore, most previous studies included small sample size with aneurysm detection at 0.5-T or 1.5-T MR. Thus, these results have been inconclusive because of certain pitfalls in these studies.

Since 2007, we have conducted a clinical study to objective detection of intracranial aneurysms in our routine diagnostic work-up of intracranial aneurysms by our neuroradiologists using a standard procedure with 3D-TOF-MRA with VR at 3T. The investigators want to establish the quality data to prospectively compare 3D-TOF-MRA with VR at 3T vs 3D-RDSA in the diagnosis of intracranial aneurysms in a largest cohort of patients and test it accuracy in screening for suspected patients ;


Study Design

Observational Model: Cohort, Time Perspective: Prospective


Related Conditions & MeSH terms


NCT number NCT01031147
Study type Observational
Source Shanghai Jiao Tong University School of Medicine
Contact Yong-Dong Li, MD, Ph.D.
Phone 0086-21-64844183
Email dr_liyongdong@sina.com.cn
Status Recruiting
Phase N/A
Start date June 2007
Completion date December 2010

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